int main()
{
	volatile long * gpbdata= (volatile long *) 0x56000014;
	volatile long * gpbcon=(volatile long *) 0x56000010;
	*gpbcon|=(1<<10)|(1<<12)|(1<<14)|(1<<16);
	while(1)
	{
		*gpbdata|=0x1E0;
		delay();
		*gpbdata&=~0x1E0;
		delay();
	}
	return 0;
}
